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Patent Searching and Data


Title:
CONTROL SYSTEM AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2019/044740
Kind Code:
A1
Abstract:
This control system for an internal combustion engine equipped with a turbocharger is provided with: a relief passage that is connected to an intake passage part located on the downstream side of a compressor of the turbocharger but on the upstream side of a throttle valve on the downstream side of the compressor; a valve for adjusting the opening state of the relief passage; and a control unit that controls operation of the valve. The control unit controls the operation of the valve so as to close the valve if the compressor is in an operated state in a non-serge range, which is a range excluding a serge range, and the pressure of the intake passage part located on the downstream side of the compressor when the throttle valve is closed is lower than a predetermined pressure, and so as to open the valve if the pressure is equal to or higher than the prescribed pressure.

Inventors:
KANEKO Shinichirou (Fujisawa Plant 8 Tsuchidana, Fujisawa-sh, Kanagawa 81, 〒2520881, JP)
TAKANO Jiro (Fujisawa Plant 8 Tsuchidana, Fujisawa-sh, Kanagawa 81, 〒2520881, JP)
OKAZAKI Atsushi (Fujisawa Plant 8 Tsuchidana, Fujisawa-sh, Kanagawa 81, 〒2520881, JP)
Application Number:
JP2018/031500
Publication Date:
March 07, 2019
Filing Date:
August 27, 2018
Export Citation:
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Assignee:
ISUZU MOTORS LIMITED (6-26-1, Minami-oi Shinagawa-k, Tokyo 22, 〒1408722, JP)
International Classes:
F02B37/12; F02B37/16
Foreign References:
JP2003193850A2003-07-09
JPS6278430A1987-04-10
JPH05106455A1993-04-27
Attorney, Agent or Firm:
HIBIYA Yukihiko et al. (The Stagio East 717, 19-31 Nishiaraisakaecho 1-chome, Adachi-k, Tokyo 43, 〒1230843, JP)
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